xtodo css

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.x {
 text-transform: uppercase;
}
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explain css light-dark function

explain css light-dark function

(ai answer)

light-dark()

The light-dark() function in CSS lets you define two colors in one property: one for light mode and one for dark mode. Here's how it works:

color: light-dark(#1a1a1a, #f5f5f5);
background-color: light-dark(#ffffff, #1f1f1f);

It automatically picks the first color when the page is in light mode, and the second when it's in dark mode. No extra JavaScript or media queries needed in the element itself.

You just set color-scheme: light dark; on your root element, and the browser does the rest. It's one of the cleaner ways to handle theming now.

what is css contrast-color

what is css contrast-color

(ai answer)

The contrast-color() is a CSS function that automatically returns either white or black based on which value provides greater contrast against a specified input color. This function is primarily used to ensure WCAG AA minimum contrast compliance for text on colored backgrounds without requiring manual color pair maintenance.

The function accepts any valid color value and evaluates its relative luminance. If both white and black offer equal contrast, the function defaults to returning white. It is particularly useful for dynamic theming, such as automatically adjusting text color when toggling between light and dark modes using the prefers-color-scheme media query.

Key usage details include:

grid-auto-rows is a CSS property that specifies the size of implicitly-created grid row tracks. It applies to rows that are not explicitly sized by grid-template-rows or grid-template-areas, such as those generated by the auto-placement algorithm when there are more items than defined rows, or when items are positioned outside the explicit grid.

Key values include:

  • auto: The default; row size is determined by the largest item in the row.
  • min-content: Row size depends on the smallest item in the row.
  • max-content: Row size depends on the largest item in the row.
  • : A fixed size (e.g., 100px).
  • : Relative to the grid container's block size.
  • fr: Fractional units of available space.
  • minmax(min, max): Defines a size range.

Borders & Accents
Apply to background with mask or border-image for creative frames.

  1. Scroll Snap – smooth, controlled scrolling for carousels and pages.
  2. Aspect Ratio – the aspect-ratio property for maintaining proportions.

add unit maybe Q s ms hz khz dpi dpcm dppx

what are css unit Q s ms hz khz dpi dpcm dppx

(ai answer)